Flyer-leg-aligning mechanism for spinning, twisting, and like textile frames



Feb. 25,1947. H. A. BOYD ET AL 2,415,430

- FLYER-LEG-ALIGNING MECHANISM FOR SPINNING,

TWISTING AND LIKE TEXTILE FRAMES Filed Sept. 2 1945 I MML Patented Feb. 25, 1947 UNITED STATE 2,416,430 FLYER-LEG-ALIGNING MECHANISM FOR SPINNING, TWISTING, AND LIKE TEX TILE FnA Es Harold Arthur Boyd and Moses Warnock, 'Shettleston, Glasgow, Scotland Application September 24, 1945, Serial No. 618,168

In Great Britain October 25, 1944 4 Claims.

This invention relates to dyer spinning, twisting and like textile frames, and especially to mechanism for aligning the legs of the ilyers so as to allow packages of spun or twisted yarn to pass out from between the legs 01' the several flyers without interference when manipulating the dofling mechanism.

The object of the invention is to provide a simple flyer-leg-aligning mechanism contrived to avoid the application of excess thrust on flyers which have stopped in dead-centre position.

Flyer-leg-aligning mechanism according to the invention includes, for each ifiyer, a yieldable member which is movable into engagement with a leg of the respective flyer and which is deflectable thereby when the leg is in dead-centre position, whereby said yieldable member is enabled to exercise a-turning moment on the flyer, In practice, we may make use of levers mounted on a bar movable transversely towards and from the flyers. When the machine is stopped for doillng, the fiyer legs may come to rest in such a position that the bar may easily bring about alignment, but when the legs of a flyer come to rest in a position transverse to the path of the bar, the respective lever will take up such a position as to impart the necessary turning moment to the iiyer and so align the flyer, the aligned liyers being then firmly held in position by the bar.

is stopped, the bar can be moved forward towards the ilyers by rotation of the shaft 8 which extends In order that the nature of the invention may be properly understood, one construction will now be described with reference to the accompanying drawing in which Fig. l is a front elevation of the upper part of a flyer spinning frame, and Fig. 2 is a plan view of the parts shown in Fig. 1. Fig. 3, Fig. 4 and Fig. 5 show a movable lever in three positions as it gradually aligns a. fiyer.

The part of the spinning frame shown in the drawings has depending fiyers I mounted in ball I flyer-leg-aligning mechanism including, for each bearings in spaced relation and supported by an and which is carried by toothed racks I mounted on the bearers of the machine. The bar 8 is held behind the flyers I and is clear of the flyers when the machine is running, but, when the machine from end to end of the machine, and which carries pinions 9 meshing with the racks I. The shaft 8 is rotatable by operation of the hand lever l0. On the bar 6 are mounted brackets II to each of which is pivoted a V-shaped lever I! having an inwardly extended arm I2 connected to the bracket II by a spring IS. The spring I3 pulls the lever against a stop II; a stop I5 limits the movement of the lever II in the opposite direction. Should a flyer I stop in a position such as 4 then the bar 6 when moved forward will align the legs into the position shown at 4 Should the flyer legs come to rest in oblique posi' tion relative to the path of the bar 6, then the V-shaped lever, when brought forward with the bar 6, will exercise the necessary turning moment on the flyer. The most diflicult approach of the lever I2 is shown at Fig. 3, when the flyer stops in direct centre position, andwhen the summit II of the V comes in contact with the flyer leg in such a position that the force appliedby the bar 5 would be acting through the axis of the flyer. In this case the lever I2 moves into the position shown in Fig. 4, the turning moment is applied to the flyer, and the bar 8 in continuing its forward motion aligns the flyer as shown by Fig. 5. The spring I! restores the lever I2 to its initial position when the lever I2 has completed its action on the flyer. The bar 8 when inforward position abutting against the flyers as shown in Fig, 5 holds the flyers securely in algned position.

What is claimed is: 1. In spinning, twisting, and like textile frames having a row of flyers each having a pair of legs,

iiyer, a yieldable member, means for moving said member into engagement with a leg of the respective flyer, said member adapted to yield if said leg is in dead-centre position, and means limiting the yielding movement of said" member to enable said 1 member to exercise a turning moment on the flyer.

2. Flyer-ieg-aligning mechanism as claimed in claim 1 in which the yieldable members are of substantially V-form in plan and the means for moving said members comprises a bar on which said members are mounted in spaced relation, said bar being movable transversely of its length towards and away from the row of fiyers.

3. Flyer-legaligninglmechanism as claimed in claim 1, in which the yleldable members are of Su stantially V-form in plan and the means for moving said members comprises a bar movable towards and away from the row of flyers, said bar having aset of stops, each of said members having an arm engageabie with one of said stops,

and a spring urging said arm towards said stop. 5

4. Flyer-leg-aligning-mechanism as claimed-in claim 1 in which the means for limiting the yielding movement of the yieldable member comprises a stop engageable by the yieidable member, and the means for moving said member comprises a bar movable towards and from the row of flyers,

said stop being carried by said bar.

' 1 HAROLD AR'I'HUR BOYD.

MOSES WARNOCK.

nmawcns crmp The, foliowiag references are of record in the file of this patent:

STATES PATENTS Number I Name v Date 1,457,593 Mylehreest June 5, 1923 1,825,201 Prince-Smith et a1. @Bept. 29, 1931 I FOREIGN PATENTS Number Country Date 606,284 German Nov. 28, 1934* 

